A variation of Tic-Tac-Toe where you can turn your opponent's piece into your own, although you have to wait a turn before you can do it again; once a piece is turned, it can't be turned back. This eliminates the CAT feature of an ordinary game of Tic-Tac-Toe.

You turn an X into an O by circling the X; while you turn an O into an X by putting an X through the O.